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NTP Last modified: Wednesday, May 08, 2002
Short for Network Time Protocol, an Internet standard protocol (built on top of TCP/IP) that assures accurate synchronization to the millisecond of computer clock times in a network of computers. Based on UTC, NTP synchronizes client workstation clocks to the U.S. Naval Observatory Master Clocks in Washington, DC and Colorado Springs CO. Running as a continuous background client program on a computer, NTP sends periodic time requests to servers, obtaining server time stamps and using them to adjust the client's clock. The latest version of NTP is defined in RFC 1305.
Simple Network Time Protocol Time Servers Available on the Internet   This article describes the SNTP time servers that are available on the Internet. Beating the Clock on Security The Network Time Protocol gets a facelift in security and accuracy. RFC 1305 The full text of the NTP version 3 RFC. RFC 2030 Simple Network Time Protocol Version 4 for IPv4, IPv6 and OSI.	Related Categories Distributed Computing Internet Protocols Standards Related Terms background distributed computing SNTP UTC